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Finding the Fourth Proportional to 162,113.80, 243,113.10 and 73,409.80

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Solution

The fourth proportional to 162,113.80, 243,113.10 and 73,409.80 is: 110,088.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,113.80 : 243,113.10 = 73,409.80 : x
  2. Step 2: Convert to fraction form
    162,113.80/243,113.10 = 73,409.80/x
  3. Step 3: Cross multiply
    162,113.80x = 243,113.10 × 73,409.80
  4. Step 4: Simplify right side
    162,113.80x = 17,846,884,048.38
  5. Step 5: Solve for x
    x = 17,846,884,048.38/162,113.80
  6. Step 6: Final answer
    x = 110,088.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.